from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An alloy of iron containing approximately 15 percent manganese and small quantities of carbon and silicon, used in the Bessemer process.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A ferromanganese alloy containing approximately 15% manganese and small quantities of carbon and silicon.
from the GNU version of the Collaborative International Dictionary of English
- n. See spiegel iron.
from The Century Dictionary and Cyclopedia
- n. A pig-iron containing from eight to fifteen or more per cent. of manganese.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. pig iron containing manganese; used as a deoxidizing agent and to raise the manganese content in making steel
German : Spiegel, mirror (from Middle High German, from Old High German spiagal, from Latin speculum; see speculum) + Eisen, iron (from Middle High German īsen, from Old High German īsan; see eis- in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)
German, literally "mirror-iron". (Wiktionary)